Cup holder



FIG. 1 is a top, rear, right side perspective view of a cup holder showing my new design, the cup and edge of a table being shown in broken lines for illustrative purposes only;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a cup holder, as shown and described. 